What do you call a cycle with three wheels?
AnswerTricycle
'Tri' means three, so a tricycle has three wheels, while a unicycle has one.
Vehicles · Facts & stats
Bicycle facts & stats
7 fact-checked facts about bicycles, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What are the thin rods that connect a bicycle wheel's hub to its rim called?
AnswerSpokes
Spokes are tensioned rods or wires running from the hub to the rim, keeping the wheel strong and round.
Going deeper
The 'running machine' built by Karl Drais in 1817, an ancestor of the bicycle, was moved how?
AnswerBy pushing your feet against the ground
Drais's two-wheeled draisine had no pedals; riders sat astride it and pushed along with their feet.
What does a bicycle's derailleur do?
AnswerMoves the chain between gears
A derailleur shifts the chain from one sprocket to another so the rider can change gears.
Which bicycle tire valve type is the same kind used on most car tires?
AnswerSchrader
Schrader valves are wide with a spring-loaded pin and are standard on car tires; Presta valves are slimmer.
Expert level
The 1885 Rover, often called the first successful 'safety bicycle', was made by which designer?
AnswerJohn Kemp Starley
Starley's Rover had wheels of similar size and a chain drive, the basic layout of modern bicycles.
In cycling, what does 'cadence' measure?
AnswerPedal revolutions per minute
Cadence is how fast a cyclist pedals, counted in crank revolutions per minute (rpm).
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